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. (No ModeL) 1 v E, N. LAND svn. CAMPBELL CYLINDER PoR `ULOVBR HULLERS.

No. 295,771. L Patented Mar. 25,1884.A

m'nmwz YW-@Zea liNrTnD STATES PATENT Price;v

HORArIo N. LAND AND HOWARD CAMPBELL, or RICHMOND, INDIANA, As-

sIGNoRs ro eAAR, soorr a COMPANY, or sAMR PLACE.

` CYLINDER FOR CLOVER-HULLERS.

SPECIFICATION forming part ofLettersPatent No. 295,771, dated March 25, 188%. Application lcd January 7, .1884. (No model.)

[3"0 all whom it may con/cern:i Y

Be it known that we, HORATIO N. LAND and HOWARD CAMPBELL, citizens of the United States, residing at Richmond, in the county of Vayne and State of Indiana, have invented new and useful Improvements in Cylinders for Clover-Hullers, of which the following is a. specication.

This invention has for its object to provide a clover-hulling cylinder which will readily and efficiently remove the seed from the pods, and which possesses the advantages of a solid and practically continuous rubbing or hulling surface, and of an 4open or hollow cylinder for `construct all the parts of metal. eylinder-heads number 1 are centrallymoun ted conveniently attaching and adjusting the rubber-teeth or replacingV a vbroken or injured rub bentooth bya new one. rIhis is accomplished by the novel construction and combination of devices comprising the cylinder, which are hereinafter described and claimed', reference being had to the accompanying drawings, in which Figure 1 is a perspective view of a hullingcylinder `made in accordance with the invention, one ofthe corrugated or roughened rub hing-plates being detached; Fig. 2, adetached perspective view of 'one of the corrugated or roughened rubbing-plates, and Fig. 3a perspective view of one of the projecting rubbers of ordinary construction.

In clover-hulling cylinders where wood is used, it is subject to swelling and shrinking, thus throwing the cylinder out of proper balance, and by swelling produce an uneven surface or peripherywhich tends to crack or mash the seed, while the parts become loose, all of which is objectionable, and to avoid this we` The metal on a supporting'shaft, 2, and aroundthe periphery of each is `provided a series ot' properly-spaced recesses, 3, in which are arranged the extremities of the metal lags 4l, said lags bein g coniined in the recesses by annular bands or flanges 5, properly secured to the cylinder- `heads and overlying the extremities of the lags. `An annular band, 6, also enciroles the lags at or near the middle of their length,while the inner sides of the cylinder-heads, at a short distance'from their peripheries, are east or otherwise provided with projecting lugs or ears S, also having screw-h cles. The spaces between the lags are occupied by the corrugated or roughened rubbingplates 9, which are curved to correspond to the circle which the cylinder is to describe The ends of these rubbingplates are provided with projecting bearings 10, through which and the plate extend openings for the passage of set screws or bolts 1l,

plates' provide an efficient rubbing-surface longitudinally between the lags,while by unscrewing the set-screws 11 and detaching one or more of the said plates access can be conveniently had to the interior of the cylinder for the purpose of attaching and adjusting the,

rubber-teeth 13, or for replacinga broken or injured rubbing-tooth, while if one of the corrugated or roughened rubbing-plates becomes broken or injured it can be readily removed and replaced by another. The lugs or ears castor otherwise attached to the inner sides of the cylinder-heads provide simple and efficient means for the attachment of the outer ends ofthe rubbing-plates through the medium of simple set screws or bolts, and in order that the heads of such screws or bolts may not pro ject unduly outward,we provide countersinks 15 around the openings through which the screws pass, so that the heads of the screws can enter the countersinks and lie below or iiush with the acting surface of the plates. The central band and its lugs or ears are-not struction shown, as providing a firm and rigid `absolutely essential, and may be omitted, in 495 Vwhich case, however, the rubbing-plates will support for the parts midway the length of the cylinder.

By the means descrbed,we provide a practically continuous corrugated or roughened rubbing-surface to the periphery of the cylinder,which is very advantageous in rapidly rubbing the seed from the podsvhile the construction of parts is such that the rubbingplates extend longitudinally between the lags and can be quickly removed and replaced.

Ve have not consideredit necessary to illustrate the concave in which thc cylinder revolves, as such may be of any usual construction-such, for example, as Wooden bars lled With rubber-teeth like those on the cylinder.

Having thus described our invention, what we claim isl. The combination, in a clover-hulling cylinder, ofthe cylinder-heads havin g lugs on their inner sides, the longitudinal lags7 the detachable rubber-teeth thereon, the rubbing-plates extending longitudinally between the lags and detachably connected to the lugs7 substantially as described.

2. The combination7 in aclover-hulling cyl- 25 inder, of the cylinder-heads having` lugs on their inner sides, the longitudinal lags, the rubber-teeth having sh anks projecting through the lags, the nuts holding the rubber-teeth, and the rubbing-plates extending longitudi- 3o nally between the lags and detachably c'onnected to the lugs, substantially as described.

3. The combination of the cylinder-heads7 having lugs on their inner sides7 the lags7 the rubber-teeth detachably secured in the 35 lags7 the rubber-plates extending longitudinally between the lags, and the screws connecting the plates to the lugs, substantially as described.

In testimony whereof we have hereunto set 4o our hands in the presence of two subscribing witnesses.

HonAfrro N. LAND. HOWARD CAMPBELL.

Vitn csses:

E. H. DENNIS, WM. W. GAAR. 

